Since 1963
ARTICLE
Characteristics of pure Love mode SAW sensor with graphene interdigital transducer for biosensing applications
1
Yunnan Key Laboratory of Optoelectronic Information Technology, Yunnan Normal University, Kunming, China
2
Changchun University of Science and Technology, Changchun, Jilin, China
Submission date: 2022-03-29
Final revision date: 2022-05-28
Acceptance date: 2022-06-30
Online publication date: 2022-08-24
Publication date: 2022-11-25
Corresponding author
Chen Chen
School of Physics and Electronic Information, Yunnan Normal University, 650500, Kunming, China
School of Physics and Electronic Information, Yunnan Normal University, 650500, Kunming, China
Journal of Theoretical and Applied Mechanics 2022;60(4):551-559
KEYWORDS
TOPICS
ABSTRACT
The characteristics of Love wave biosensors are systematically investigated. The results show
that sensors with combination of a ZnO guiding layer and 90ST or 90AT Quartz substrates
exhibit purer Love modes than those with the SiO2 guiding layer. The corresponding maxi-
mum sensitivities are −10.9069 and −11.641m2/kg, respectively, which are nearly two times
higher than those of SiO2 layer. The ZnO/90ST Quartz Love wave sensor exhibits the largest
K2 of 0.3022 and achieves 0 ppm/oC of TCF at hZnO/λ = 0.0216. The sensor employing the
Graphene IDT further improves the sensitivity by nearly one order of magnitude.
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| eISSN: | 2543-6309 |
| ISSN: | 1429-2955 |
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